From jhughes@kth.se Sat Jun 04 05:31:07 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!kth!jhughes From: jhughes@kth.se (Julien Hughes) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jun04.053107.3632@kth.se> Date: Sat, 04 Jun 1994 05:31:07 GMT Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Julien Hughes Hayes Optima 288 @ 33,600 bps "In theory there is no difference between theory and practice." From esmirnov@pacbell.net Sat Jun 04 14:14:07 1994 Path: ashpoly!cascade!mxgate!coyoacan!pacbell!esmirnov From: esmirnov@pacbell.net (Elaine Smirnov) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jun04.141407.1981@pacbell.net> Date: Sat, 04 Jun 1994 14:14:07 GMT References: <1994Jun04.053107.3632@kth.se> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Jun04.053107.3632@kth.se>, jhughes@kth.se (Julien Hughes) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. > Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Elaine Smirnov Tape trading list upon request. SASE required for international mail. From jnovak@mindspring.com Sun Jun 05 05:45:07 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!mindspring!jnovak From: jnovak@mindspring.com (Julien Novak) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jun05.054507.7216@mindspring.com> Date: Sun, 05 Jun 1994 05:45:07 GMT References: <1994Jun04.053107.3632@kth.se> <1994Jun04.141407.1981@pacbell.net> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Jun04.141407.1981@pacbell.net>, esmirnov@pacbell.net (Elaine Smirnov) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Julien Novak Zyxel U-1496E @ 19,200 bps "Extraordinary claims require extraordinary spectra." From mkim@berkeley.edu Tue Jun 07 09:31:07 1994 Path: ashpoly!cascade!bigsur!berkeley!mkim From: mkim@berkeley.edu (Mike Kim) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jun07.093107.3731@berkeley.edu> Date: Tue, 07 Jun 1994 09:31:07 GMT References: <1994Jun04.053107.3632@kth.se> <1994Jun04.141407.1981@pacbell.net> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: Netscape 1.1N Lines: 8 In article <1994Jun04.141407.1981@pacbell.net>, esmirnov@pacbell.net (Elaine Smirnov) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Mike Kim -- UC Berkeley Department of EECS "Hold for relay."